210212200069 has 2 divisors, whose sum is σ = 210212200070. Its totient is φ = 210212200068.

The previous prime is 210212200043. The next prime is 210212200139. The reversal of 210212200069 is 960002212012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176626872900 + 33585327169 = 420270^2 + 183263^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210212200069 is a prime.

It is a super-2 number, since 2×210212200069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210212200169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105106100034 + 105106100035.

It is an arithmetic number, because the mean of its divisors is an integer number (105106100035).

Almost surely, 2^210212200069 is an apocalyptic number.

It is an amenable number.

210212200069 is a deficient number, since it is larger than the sum of its proper divisors (1).

210212200069 is an equidigital number, since it uses as much as digits as its factorization.

210212200069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 210212200069 in words is "two hundred ten billion, two hundred twelve million, two hundred thousand, sixty-nine".